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Doctor insights on: Can There Be A False Positive Pregnancy Test

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Dr. Adam Lewis
4 doctors shared insights

Pregnancy (Definition)

When your due date arrives, you will be more than ready to have your baby! Most women deliver the baby somewhere between 37 and 42 weeks. According to the American College of Obstetricians and Gynecologists, only 5% of babies arrive on the exact due date. Approximately 7% of babies are not delivered by 42 weeks, and when that happens, it is referred to ...Read more


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Can you have a false positive pregnancy test?

Can you have a false positive pregnancy test?

Yes : Certain tumors produce HCG and these will produce a false-positive pregnancy test even in a man. A chemical pregnancy (in which the conception is lost very early) might be considered a false-positive. I trust the specimen is not contaminated. Good luck; i hope that whatever comes next is what you want. ...Read more

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Can a pregnancy test give a false positive result?

Can a pregnancy test give a false positive result?

Depends: What test are you talking about? Blood test or urine test? A urine test is not likely to have a false positive if you follow the instructions carefully, including the time within which to read the result. There may be false negative result if you test too early of if the urine is too dilute. ...Read more

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Can a tubal pregnancy cause home pregnant tests to be false?

Can a tubal pregnancy cause home pregnant tests to be false?

Nope.: The pregnancy test cannot tell where the pregnancy is implanted. It shows positive in both ectopic/tubal and normal pregnancies alike. The way to diagnose tubal pregnancy is by serial blood beta HCG levels and transvaginal sonography in expert hands. Take Folic Acid 1-5 mg daily and good luck! ...Read more

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How often could a false negative pregnancy test occur?

How often could a false negative pregnancy test occur?

Not often: Pregnancy tests are quite accurate. A pregnancy test should be accurate by about 12 days after your ovulation, so by the time your period is late the test should be accurate. ...Read more

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What could cause a pregnancy test to give a false positive?

What could cause a pregnancy test to give a false positive?

Big cause: is letting it sit out and reading it much later than it should have been read. ...Read more

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What would cause a false positive pregnancy test?

What would cause a false positive pregnancy test?

Very unlikely: Three tests are what you are asking about and the statistics make that virtually impossible to have been a false positive. ...Read more

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Can a pregnancy test be wrong?

Can a pregnancy test be wrong?

Any test can be: Wrong. However, if done correctly and after about a week past a missed period, these tests are generally accurate. ...Read more

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Can anything cause a false positive on a pregnancy test?

Can anything cause a false positive on a pregnancy test?

Unlikely: Home pregnancy tests are very sensitive and can turn positive before missed period... Reccomend follow-up with md for verification... ...Read more

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Can pcos cause a false negative in a pregnancy test?

Can pcos cause a false negative in a pregnancy test?

Should not: The pregnancy tests use b-hcg for their evaluation, and are very sensitive. Pcos should not affect the testing. ...Read more

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is there such thing as a false positive pregancy test

is there such thing as a false positive pregancy test

False + pregn. tests: There is such a thing as a false positive urine pregnancy tests; there are lab errors; there a disorders of the liver, ovaries and other organs which can produce HCG or molecules similar to HCG; there are some molecules which may interfere with the pregnancy test performance or some reactives...False positive blood pregnancy tests may also occur but are much rarer. ...Read more

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What causes a chlamydia test to be a false negative?

What causes a chlamydia test to be a false negative?

It's just random: Tests miss 5-10% of infections, more by urine, less by urethral or vaginal swab. Maybe other possibilities as well. Chlamydia clears on its own in a few weeks to months, so current testing is negative. Or s/he received an antibiotic for chlamydia (and didn't admit it) or for another infection, curing chlamydia or interfering with the test. Partner(s) of infected person need Rx, even w/ neg tests. ...Read more

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The earliest for a pregnancy test to be positive?

The earliest for a pregnancy test to be positive?

See below: Conception, as defined by the generation of a fertilized ovum, occurs within day or so of the sex. However, it takes about two weeks for the embryo to make enough HCG to produce a positive pregnancy test. Blood test may be positive a day before a missed period. Home pregnancy tests should be done 4-5 days after the missed period. A negative test done too early is not useful. ...Read more

Dr. Stephen Sudler
482 doctors shared insights

Pregnancy Test (Definition)

A pregnancy test measures a hormone called human chorionic gonadotropin (HCG). HCG is a hormone produced during pregnancy. It appears in the blood and urine of pregnant women as early as ...Read more